Closure for containers



MarCh 14, 1933. A. J. CHAMBERLAIN CLOSURE FOR CONTAINERS Filed sept. 5o,1929 Patented Mar. 14, 1933 UNITED sTATEs .ALFRED J'. CHAMBERLAIN, OFMILWAUKEEpWISCONSIN CLSURE FOR CONTAINERS Application filed September30, 1929. Serial No. 396,088.

This invention relates in general to closures for containersand moreparticularly to that type of closure which employs a gasket compressedbetween parts of the con- '.5 tainer and closure when the closure isapplied whereby to provide a fluid tight seal.

One of the principal objects of the present invention is to provide aclosure of this character wherein the gasket is organized in a novelmanner with the closure so as to avoid the use of cement and the sametime more positively secure the gasket in position.

In connection with closures of this type it has been proposed to securethe gasket to the flange of the cover or closure by cement,

but this has not been found satisfactory because the cement willdiscolor or otherwise impair the chemical products packaged in thecontainer and also because the cement is dissolved or broken down by thecontents of the container thus permitting the gasket to become loose anddisplaced or lost when the cover is removed.

With the present invention even after the closure has been removed fromthe container the gasket is positively held in proper position so thatthe container may be resealed without recementing the gasket or takingany other steps to secure the same in proper 3 position on the closure.

In general, the present invention greatly facilitates the application ofthe closure in liquid tight relation to the container and eliminatesmuch labor, difficulty and annoyance heretofore incurred. Further, thepresent invention lessens the first cost of the container and closure.

Other objects and advantages reside in certain novel features of theconstruction, arrangement and combination of parts which will behereinafter more fully described and particularly pointed out in theappended claims, reference being had to the accompanying drawing forminga part of this specification, and in which:

Figure 1 isa fragmentary sectional view taken on line 1-1 of Figure 2;

Figure 2 is a fragmentary sectional view taken on line 2--2 of Figure 1,with parts broken away for the sake of illustration; and

Figure 3 is a fragmentary view in bottom plan showing another form ofthe invention.

Referring to the drawing, the numeral 1 designates generally the bod ofa container which may be of any suitable construction and which is shownas having an outwardly p and downwardly inclined flange 2 around itsupper open end, the fiange 2 providing a gasket seat. A closuredesignated at 3 is provided for the container and has a rim 4 60 formedwith an outwardly and downwardly inclined flange 5. At spaced pointsabout its circumference, the ange 5 has integrally formed therewithbendable sealing lugs 6. When the closure is applied to the container agasket 7 is interposed between the flanges 2 and 5 so that when the lugs6 are bent up under the Harige 2 as clearly shown in Figure 1 the gasket7 is compressed between the flanges 5 and 2 tov afford a liquid tightseal.

The present invention proposes to secure the gasket 7 to the flange 5and for this purpose, retaining lugs 8 are struck out of the metal ofthe flange 5 adjacent the sealing lugs 6, the lugs 8 being deflected ordepressed in- 75 wardly and being imbedded in the gasket to secure thesame in position. Any suitable number of lugs 8 are provided, butpreferably there is a retaining lug 8 for each sealing or clinching lug6. It is to be noted that, 8 even where the lugs 8 are struck out of themetal containing the clinching lugs 6 to the flange 5, the bending oflugs 6 does not affect the action of the retaining lugs or clips 8.

With this construction whenever the clo- 8 sure is applied to thecontainer the gasket 7 is properly positioned for compression betweenthe flanges 5 and 2. The means employed for holding the gasket inposition is not affected by the contents of the container and will notimpair their quality or character in any respect. The application orremoval of the closure from the container does not impair the functionof the retaining lugs 8 and these lugs by holding the gasket 7 inposition during removal protect the gasket so that resealing may beeffected without giving the gasket any further attention'. It is to benoted that the lugs 6 have apertured hook-like extensions 6 tofacilitate prying out of the lugs 6 and removal of the closure.

Referring to Fig. 3, the gasket retaining, lugs are designated at 8 andare in all respects similar to the retaining lugs 8 ot Figures l and 2except that they are positioned in between the sealing lugs 8 and areformed as integral extensions of the Harige 5 instead of being struckfrom the metal connecting the sealing lugs 6 and Harige 5 as in theother A'embodiment of the invention. The lugs 8 operate in the samemanner and have the sanie advantages as the lugs 8.

The invention claimed is:

1. rl`lie combination with a container having an outwardly extendingsurrounding Harige at its upper end, of a closure for the containerhaving its marginal portion formed to provide a Harige to overlie thecontainer Haiige and ext-end toward the outer edge thereof on applyingthe closure to the container, a gasket to be compressed between saidHanges, bendable lugs connected with the closure Harige and extendingbelow the same to be bent under the container Hange for locking theclosure to the container and compressingthe gasket between said Hanges,and gasket retainer clips connected with the closure Hange and extendinginto the space between said Hanges for connecting the gasket to theclosure and for holding the gasket at kall times in position forcompression between said Hanges on locking the closure to the container.

2. The combination with a container having an outwardly extendingdownwardly inclined surrounding Harige at its upper end, of a closurei'or the container having its marginal portion formed to provide acomplimentary flange to overlie the container Harige and extend towardthe outer edge thereof on applying the closure to the container, agasket to be compressed between said Hanges, bendable lugs connectedwith the closure Hanges and extending below the same to be bent underthe container Hange for locking the closure to the container andcompressing the gasket between said Hanges, and gasket retainer clipspressed ont of the portion of the closure Harige above the lugs andextending into the space between said Hanges for connecting the gasketto the closure and for holding the gasket at all times in position forcompression between said Hanges on locking the closure on the container.

3. The combination with a container having an outwardly extendingsurrounding Harige at its upper end, of a closure for the containerhaving its marginal portion formed to provide a Hange to overlie thecontainer Harige and extend toward the outer edge thereof on applyingthe closure to the container, a gasket to be compressed between saidHanges, spaced bendable lugs connected with the closure Harige andextending below the same to be bent under the container Harige forrecitar locking the closure to the container and compressing the gasketbetween said Haiiges, and gasket retainer clips connected with theclosure Harige between the lugs and extending into the space betweensaid flanges for consure securing lugs carried by the closure andcooperable with the Harige oic the container to compress a sealinggasket between said Hanges, and a gasket for the closure, thecombination with said gasket of gasket-securing lugs carried by the saidclosure and clamping said gasket firmly against the Hange of theclosure, said gasket-securing lugs being. positioned above thecircumferential line of bend of the closure-securing lugs as defined bythe outer edge of the container Hange so as to extend into the spacebetween the Hanges of the container and closure and overlie the Hange ofthe container when the closure is in place thereon, whereby the holdingaction ofL the gasket-securing lugs is unaffected by the bending of theclosure-securing lu into and out of clamping' relation with the ange ofthe closure.

5. ln a container closure having an annular gasket-seating Harigecooperable with a similar Hange on a container, spaced bendableclosure-securing lugs carried by the closure and cooperable with theHarige of the container to compress a sealing gasket between saidHanges, and a gasket for the closure, the combination with said gasketof gasket-securing lugs carried by the said closure and clamping saidgasket firmly against the Harige oi the closure, said gasket-securinglugs being positioned between the closuresecuring lugs and above thecircumferential line of bend of the closure-securing lugs as deiined bythe outer edge of the container Hange so as to extend into the spacebetween the Hanges of the container and closure and overlie the Harigeoft-the container when the closure is in place thereon, whereby theholding action of the gasket-securing lugs is unaHected by the bendingof the closure-securing lug into and out of clamping relation with theHarige of the closure.

6.y lin a container closure having an annular gasket-seating Hangecooperable with a similar Harige on a container, bendableclosure-securing lugs carried by the closure and cooperable with theHange of the container to compress a sealing gasket between said Hanges,and a gasket for the closure, the coinbination with said gasket ofgasket-securing lugs carried by the said closure and clamping saidgasket firmly against the Harige of the closure, said gasket-securinglugs being positioned in substantial axial ali ent with the closuresecuring lugs and a ove the circumferential line of bend of theclosure-securing lugs as defined by the outer edge of the containerflange so as to extend into the space between the flanges of thecontainer and closure and overlie the flange of the container when theclosure is in place thereon, whereby the holding action of thegasketsecuring lugs is unaffected by the bending of the closure-securinglug into and out of clamping relation with the ange of the closure.

In witness whereof, I hereto aix my signature.

ALFRED J. CHAMBERLAIN.

